Locking device



E. GLISONI AND E. VON BECK.

LOCKING DEVICE.

APPLICATION FILED ocr. 29. 1920- I i M gag @0014 ow 851; Gummy PatentedJuly 5,1921.

sire star;

. EUGENE GLISONI AND Ennns'r VON BECK, or new YORK, n. Y.; sAin VON BECKnssrenon or HIS ENTIRE RIGHT TO CARLO nnrinonr, or new YORK, 1r. Y.

LOCKING nnvrcn.

Specification 01? Letters Patent, lfiflgentedl J l 5, 1921;

Application filed October 29, 1920. Serial No. 420,446..

T 0 all whom it may concern:

Be it known that we, EUGENE Gnrsonr and EnNns'r VON Bnon, a citizen ofthe United States and a subject of the King of Italy, respectively, andresiding in New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Looking Devices, ofwhich the following is a specifica- 'tion.

I from the outside of the inclosure, except by the use of a key torelease the bolt; but with the device nevertheless capable of permitting the bolt to be withdrawn, from the outside of the inclosnre, byhand without a key whenever desired;

A further object of the invention is to provide a locking device havinga bolt which requires a key to enable it to be withdrawn,

from the outside of the inclosure when it has been projected the fulldistance to looking position; the bolt being then held by a retaineragainst return movement; the parts of the lock being neverthelesscapable of permitting the bolt to move only part of the full distance;so that, while the door can then be held shut, no key to open the door,from without the inclosure, is needed.

Another object of this invention is to provide a locking device that iscomparatively the shape, size and arrangement of the various partswlthout departlng from the nature and spirit of the invention, to thefull extent indicated by the general meanings of the terms in which theclaims are expressed.

On the drawings E- I Flgure l'is an inside View of a locking deviceaccording to our invention showing the bolt or latch therefor, and theparts to actuate same, in a suitable casing, presented as having the topremoved to show the interlor;

Fig. 2 is a horizontal section on the line 22, and Fig. 3 a verticalsection on the line 3+3 of Fig. l;

Figs. 4 and 5 are viewssimilar to Fig. 1 of aniodified form of our lockwith the parts in different operative positions; and Fig. 6 is a'sectionon line 6-6 of Fig. 4.

The same numerals identify the same parts throughout. r '1 On Figs. 1, 2and 3, numeral 1 indicates a suitable casing consisting of a top andfour sides; the bottom of this casing being open if preferred; and thecasing being adapted to be secured by screws or any suitable fasteningdevices to. a door or other member'2 which is to be fastened by ourlocking device. When the casing containing the locking device is mountedupon the 2 and 3; this top. beingoomitted from Fig. i V

1 to give a clear view of all the parts of the locking device. As willbe understood the frame of the door 2 may carry a striker plate havingan opening through which the end of the bolt 3, which moves out of thecasing 1 through the opening 4, can enter; and when the bolt 3 entersthis striker plate the door is locked and cannot be openeduntil the bolt2 is withdrawn. As striker plates of various kinds mayv be used theillustration of the striker plate is not thought to be necessary.

The top of the bolt is provided with a longitudinal row of teeth 5,constituting a rack to engage the teeth of a pinion or member 6.

This pinion is carried by a shaft or spindle 7 that extends through thedoor 2 and easing 1 and carries at each extremity a knob 8. When theshaft 7 is turned by either of these knobs the bolt 2 can be moved backand forth. When the shaft 7 is made to turn the pinion 6 to withdraw thebolt en tirely into the casing 1 the door can be opened; and when thepin 6 shoots the bolt in the opposite direction as far as it is designedto go the door will be held fast and cannot be opened from the outsideof the inclosure except by means of a key; because when the bolt hasbeen projected the full distance to locking position, the front end ofthe bolt being as far out of the casing as it will go, a retainer 9 inthe casing 1 will engage the bolt and prevent it from being moved eitheroutward or inward until the bolt is released. This retainer is shown asmounted upon a pivot 10 in the casing 1 below the bolt 3 and the endthereof is adapted to enter a recess 11 in the side of the bolt; aspring 12 in the casing pressing the retainer 9 toward the bolt so thatas soon as the recess 11 comes into registry with the end of theretainer the end of the retainer will enter this recess. Obviously, thenthe bolt 3 cannot be pushed back into the casing to allow the door 2 tobe opened until the retainer 9 is made to disengage the bolt.

To cause the retainer to release the bolt we make use of an ordinarytumbler lock 13 which may be of any well known construction andcomprises the usual cylinder which can be mounted in an opening in thedoor 2 so that the inner end of the cylinder of the tumbler lock will belocated in the interior of the casing 1. This tumbler lock may bemounted by boring a hole in the door 2 and the inner end thereof made toproject into the casing 1, or may terminate flush with the surface ofthe door to which the casing 1 is fastened. The casing of this lookencircles a barrel which is usually held in rigid relation with the saidcylinder by means of tumblers which must be moved to proper position bymeans of a key indicated by the numeral 14 before the barrel can beturned in the cylinder of the tumbler lock 13. To the inner end of thisbarrel is secured an extension 15 which be polygonal in crosssection andpass into a correspondingly sha ed bore of a rotatabl mounted bushin P Yn or element 16 carried by this extension in the casing 1. On the insideof the bushing is an arm 17 and the retainer 9 may have a recess 18,through which the ends of the arm 17 may pass. When the retainer 9engages the recess 11, the retainer can be made to release the bolt 3upon the insertion of the key 14% into the tumbler lock 13 and theturning of the key to revolve the extension 15 and the element 16;whereupon the arm 17 will force the retainer 9 to withdraw the endthereof from the recess 11. Then, the bolt 3 can be moved back into thecasing lrby rotation of the knob 8. Hence anyone on the outside of theinclosure can open the look if he has a key to fit the tumbler lock 13.

From the inside of the inclosure the bolt 3 can be withdrawn without akey by the rotation: of the knob 8 at the opposite end of the shaft 7. Ahead 19 on the outside of the casing 1, is secured to the retainer 9 bya shank which passes through an opening in the casing; therefore whenthe bolt is shot to full projecting distance and the end of the retainer9 is forced into the recess 11, one on the inside of the inclosure needonly pull on-the head 19 to disengage the bolt, then rotate the knob 8on the inside of the inclosure to move the bolt back.

The belt is also provided in one side with another recess 20 in advanceof the recess 11 and the top of the casing carries on the outside of thesame a resilient strip 21 hearing a head 22 with a projection 23. Inline with this projection the top of the casing 1 has an opening 2 1 andwhen the projection 23 is in line with the opening 24: the spring 21tends to force the projection 23 through this opening into contact withthe bolt 3. Tf, therefore, the bolt be moved into the casing to bringthe recess 20 and the aperture 24 into registry, the projection 23 willpass through the opening 2 1 into this recess and restrict themorementof the bolt to a distance equal to the width of this recess 20.Under such circumstances the bolt cannot move to its full projectingdistance and the terminal portion thereof which will stick out of thecasing 1 into the opening 1 will be beveled from the edge of the doortoward the top of the easing 1. This beveled face, when the door isshut. will be engaged by the striker plate on the frame of the door-andcause the bolt to be pushed back into the casing until the door is shut.Then, as the bolt comes into alinement with the aperture through thestriker plate it shoots out of the casing as far as the projection willallow and passes into the aperture of the striker plate to hold the doorclosed until the bolt is again moved back. A spring 25 on the inside ofthe casing engages the inner end of the bolt when the projection 23 hasentered the recess 20 and tends to move the bolt outward. The beveledend of the bolt is indicated by the numeral 26. The strip 21 may be. ofany resilient metal or other substance and it will be fixed to the topof the casing by a rivet whichv will enable it to'be swung about on itsriveted end as a pivot. Therefore when the bolt is allowed to project toits full distance as indicated in Fig. 1, the head 22 is pulled to makethe proj ection 23 clear the recess 20 and the opening 24; and the arm21 is then swung to carry the projection 23 out of line with the opening24. Then there will be nothing to engage the recess 20 and the bolt canmove out as far as required.

The operation and utility of the invention will now be clear. When aperson on the inside of the inclosure wishes to lock the door 2 so thatno one can open it from the outside of the inclosure, except with theproperkey, he first makes sure that the projection does not extendthrough the opening 7 24, then he opens the door and goes out, pushingthe bolt 3 back far enough to enable the beveled end 26 to engage thestriker plate on the frame so that the bolt will snap through thestriker plate when the door is completely shut. From the outside of theinclosure then, he turns the knob 8 to move the bolt 3 out of the casing1 far enough to bring the recess 11 to the end of the retainer 9.'The'retainer then enters this recess and secures the bolt. Then no onefrom the outside can open the door 2, except by inserting the key 14 andturning the knob 8. On the other hand the door can be opened from theinterior of the inclosure Without a key simply by pulling down upon thehead 19 and turning the inside knob 8; Whenever one wishes to adjust thelocking device so that the door can be opened from either the inside orthe outside of the inclosure without a key, he manipulates the head 22to make the projection 23 engage the recess 20. Then the lock cannotmove far enough to enable the retaining element to take effect.

The recess 11 is made deeper than the recess 20 so that the end of theretainer cannot enter the recess 20. Guide members 27 may be secured tothe door and the inner face of the top of the casing 1 for the bolt 3and this bolt may be provided with teeth not only on the top but on thebottom also, and the recesses 11 and 20 on one face may be duplicated onthe opposite face, so that the bolt can be used on a door which opens ina different direction simply by turning the bolt on its longitudinalaXis through onehalf of a circle, particularly when we wish to mount thelooks upon doors that do not all open in the same direction.

The casing 1 may be provided with a plate to close the bottom as well asthe top. Of course when the projection 23 is not in the opening 24, theprojection simply rests on the outside of the casing beside thisopening.

In Figs. 4, 5 and 6 we illustrate a lock which is similar to the lockdescribed above; with the exception of certain minor alterations.Instead of having the teeth 5, as already set forth, we make a deeprecess 28 in the rear end of the bolt and put the.

teeth 5 in the upper and lower part of this recess thus locating theteeth in the top and bottom of the bolt as before; but the pinion 6turns in the recess 28 and enables the bolt to be moved to project atone end through the casing through the opening 4 and to be withdrawninto the casing; By this device we canuse a smaller casing because theshaft the retainer to engage the bolt. Instead of the recess for theretainer being on the in side of the bolt we make a recess which isindicated at 11 in Figs. 4: and 5 in the bot-' tom of the bolt,duplicating this recess in the top the same as the teeth 5.

We also dispense with the recess 20 in the bolt, the strip 21, the head22 and the open ing 24 and instead of these parts we employ a stop 29 onthe top of the bolt to cooperate with the spring 30 secured inside'ofthe casing 1. The stop 29 may be simply a screw plug and the bolt mayhave an opening in the bottom" to enable the position of thisv plug tobe changed when the bolt isto be used upon a door opening in a differentdirection. Normally this spring 80 acts as a part to' engage the stop 29and arrest the bolt before it has moved to project far enough throughthe opening 4'to enablethe retainer 9 to enter the recess 11. Therefore,when one goes out and shuts the door after him, he must turn the pinion6 to force the bolt to project far enough through the opening 4 to makethe stop 29 push against the springBO until the bolt has carried therecess 11 into alinement with the end of, the retainer. Then theretainer engages the bolt and the door can not be opened from withoutexcept by the use of a key to turn the tongue 15 and push down theretainer9. When the retainer is thus pushed down the spring .30 acts topush the bolt back far enough tomove the recess 11 out of line with theretainer and then by turning the outside knob 8 the pinion 6 can be madeto withdraw the bolt entirely and allow the door to be opened. Of coursethis retainer can be disengaged from the inside of the room by pullingdown on the'head 19. V

To enable the lock to be used so that the bolt 3 can be withdrawn fromwithout the inclosure by one having no key, the bolt 3 is simply pushedback until only the beveled portion26 projects from the casing 2, thenthe door can be snapped shut and opened from without, simply by turningthe knob 8 and pinion 6; the spring30 then acting as a 1. Thecombination of bolt, a retainer to engage the bolt when projectedtoi'ull operative position, a keybperated element to disengage theretainer from the belt, a member independent of the retainer to projector Withdraw the bolt when disengaged from the retainer, and a part tolimit the projection of the bolt to prevent the retainer from engagingsame, rendering the retainer inefi ective and perniittii'ig theWithdrawal of the bolt by said member, said part being operable torelease the bolt to permit it, Whenever desired, to move into positionto been gaged by said retainer.

2. The combinationol' a bolt, teeth carried thereby, a retainer toengage the bolt When projected to full operative position, a keyoperatedelement to disengage the retainer from the bolt, a pinion to be thenactuated to Withdraw the bolt, and a part to limit the projection of thebolt to prevent the retainer from engaging same, rendering the retainerineffective and permitting the Withdrawal of the bolt by said member,said part being operable to release the bolt to permit it, Wheneverdesired, to move into position to be engaged by said retainer.

3. The combination of a belt, a retainer to engage the bolt whenprojected to full operative position, a. key-operated element todisengage the retainer from the belt, a member independent of theretainer-to be actoated to project or Withdraw the bolt, a f xed spring,and a stop on the bolt to be engaged by the spring to limit the proection of the bolt short or thepoint at which the'retainer en 'a 'es thebolt IBDClQ-YHI the retainer ill- U Q b effective and permitting thebolt to be wlthdrai'vn by said member, the spring being capable of:distension at will to allow the bolt to move into position for theretainer to engage it.

l. The combination of a belt, a retainer to engage the bolt Whenprojected to full operative position, a key-operated element todisengage the retaineriirom the bolt, the bolt having teeth thereon, apinion to mesh With the teeth on the bolt to actuate same whendisengaged from said retainer, a. fixed spring, and a stop on the boltto be engaged by the spring to halt the projection of the bolt short ofthe point Where the retainer engages same, rendering the retainerineffective and permitting the Withdrawal of the bolt by said pinion,the spring being capable of distension at Will to allow the bolt to moveinto position for engagement by the retainer.

In testimony whereof We have signed our names to this specification this16th day of October, 1920.

EUGENE emsonr. nnnnsr V N BECK.

